| 摘要 |
PURPOSE:To improve accuracy by providing the generating means of a control signal and a switch means and obtaining a convergence signal in time division so as to attain ease of adjustment of convergence. CONSTITUTION:Fundamental waveform signals VS, HS for correcting convergence of vertical period and horizontal period are led to output terminals 14-17 and 24-27 via plural switch means SA, SB respectively. The convergence correcting signal subjected to time division corresponding only to each first half or latter half of the vertical scanning period and the horizontal scanning period is obtained respectively at the terminals 14-17 and 24-27 by giving a control signal different from the first and latter half of the vertical scanning period and horizontal scanning period to the switch means SA, SB. |
